1. Rumex alpinus L. (syn.: R. pseudoalpinus Höfft) (C-Eur., SW-As.) – An exceptional escape from cultivation. Found in 1997 by a path in Waimes in the Hautes Ardennes (Duvigneaud & Saintenoy-Simon 1997).
Selected literature:
Duvigneaud J. & Saintenoy-Simon J. (1997) La patience des Alpes (Rumex alpinus L.). Adoxa 17: 1-2.
Saintenoy-Simon J. (1997) Excursion dans la région de Waimes et de Bütgenbach, le 14 septembre 1996. Adoxa 17: 19-21.
St’astná P., Klimeš L. & Klimešová J. (2010) Biological Flora of Central Europe: Rumex alpinus L. Perspectives in Plant Ecology, Evolution and Systematics 12(1): 67-79.
Taxonomic name: